Pop-up sprinkler



FIG. 1 is a top perspective view of a pop-up sprinkler showing my new design;

FIG. 2 is an elevational view taken from the top side of FIG. 3.

FIG. 3 is a top plan view thereof;

FIG. 4 is an elevational view taken from the left side of FIG. 3.

FIG. 5 is a bottom plan view thereof; and

FIG. 6 is a top perspective view thereof with the pop-up sprinkler shown in the extended position.

The broken-line showing of the sprinkler head is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a pop-up sprinker, as shown and described. 